ergo
barrier.h
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1 /* Ergo, version 3.8, a program for linear scaling electronic structure
2  * calculations.
3  * Copyright (C) 2019 Elias Rudberg, Emanuel H. Rubensson, Pawel Salek,
4  * and Anastasia Kruchinina.
5  *
6  * This program is free software: you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License as published by
8  * the Free Software Foundation, either version 3 of the License, or
9  * (at your option) any later version.
10  *
11  * This program is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14  * GNU General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License
17  * along with this program. If not, see <http://www.gnu.org/licenses/>.
18  *
19  * Primary academic reference:
20  * Ergo: An open-source program for linear-scaling electronic structure
21  * calculations,
22  * Elias Rudberg, Emanuel H. Rubensson, Pawel Salek, and Anastasia
23  * Kruchinina,
24  * SoftwareX 7, 107 (2018),
25  * <http://dx.doi.org/10.1016/j.softx.2018.03.005>
26  *
27  * For further information about Ergo, see <http://www.ergoscf.org>.
28  */
29 
30 #if !defined(_ERGO_BARRIER_H_)
31 #define _ERGO_BARRIER_H_
32 
36 #if !defined(HAS_PTHREAD_BARRIER)
37 
38 #ifdef __cplusplus
39 #define EXTERN_C extern "C"
40 #else
41 #define EXTERN_C extern
42 #endif
43 
44 #if !defined(PTHREAD_BARRIER_SERIAL_THREAD)
45 #define PTHREAD_BARRIER_SERIAL_THREAD -1
46 #endif
47 
48 typedef struct ergo_barrier {
49  pthread_mutex_t barrierMutex;
50  pthread_cond_t conditionVar;
51  int initCount;
52  int currCount;
53  int cycle;
55 
57  const void * attr_ignored,
58  unsigned int count);
59 
62 
63 #else /* HAS_PTHREAD_BARRIER */
64 #define ergo_barrier_t pthread_barrier_t
65 #define ergo_barrier_init pthread_barrier_init
66 #define ergo_barrier_destroy pthread_barrier_destroy
67 #define ergo_barrier_wait pthread_barrier_wait
68 #endif /* HAS_PTHREAD_BARRIER */
69 
70 #endif /* _ERGO_BARRIER_H_ */
EXTERN_C
#define EXTERN_C
Definition: barrier.h:41
ergo_barrier::currCount
int currCount
Definition: barrier.h:52
ergo_barrier::barrierMutex
pthread_mutex_t barrierMutex
Definition: barrier.h:49
ergo_barrier_t
struct ergo_barrier ergo_barrier_t
ergo_barrier_init
EXTERN_C int ergo_barrier_init(ergo_barrier_t *barrier, const void *attr_ignored, unsigned int count)
Definition: barrier.c:44
ergo_barrier_destroy
int ergo_barrier_destroy(ergo_barrier_t *barrier)
Definition: barrier.c:58
ergo_barrier::conditionVar
pthread_cond_t conditionVar
Definition: barrier.h:50
ergo_barrier_destroy
EXTERN_C int ergo_barrier_destroy(ergo_barrier_t *__barrier)
Definition: barrier.c:58
main
int main(int argc, char *argv[])
Definition: bin2m.cc:45
ergo_barrier_wait
int ergo_barrier_wait(ergo_barrier_t *barrier)
Definition: barrier.c:68
ergo_barrier::cycle
int cycle
Definition: barrier.h:53
ergo_barrier_wait
EXTERN_C int ergo_barrier_wait(ergo_barrier_t *__barrier)
Definition: barrier.c:68
ergo_barrier
Definition: barrier.h:48
barrier.h
ergo_barrier_init
int ergo_barrier_init(ergo_barrier_t *barrier, const void *attr_ignored, unsigned int count)
Definition: barrier.c:44
ergo_barrier::initCount
int initCount
Definition: barrier.h:51
PTHREAD_BARRIER_SERIAL_THREAD
#define PTHREAD_BARRIER_SERIAL_THREAD
Definition: barrier.h:45